Are push-ups and pull-ups an adequate substitute for weights + machines?

I ask because I was out of town for a week so I didn't go to my local gym. Instead, I brought the perfect pushup device and did 300-400 every day before and after work.

Then, back in town, my gym was shut down for repairs, so I did the same with the perfect push-up, about 400 per day, along with about 100-150 pull-ups every day. (I have a free standing pullup bar at home.)

Thing is, I'm noticing better results and a better pump over these past two weeks than with my usual routine at the gym.

Anything to this? Can push-ups and pull-ups serve as an adequate upper body workout?

I've just resumed push ups after living with "trigger finger" (right thumb) and the consequent hand surgery. I get upper body pump from them in addition to the stuff I do at the gym. Plus, I can do push ups anywhere.

riddler78 saidNo idea if it's adequate and not sure if this video is indicative but I suspect that so long as you vary how the pushups are done at various angles it provides at a very minimum a balanced workout.

I think bodyweight based exercises like pullups and pushups cant a minimum, help you keep yourself in shape if you can't get to a gym. You might even notice better results from them initially if you haven't done them in a long time due to working the body in a way it isnt used to.

For pure mass building, bodyweight exercises alone won't do the trick. Though some guys say they can break through training plateaus by supplementing with bodyweight stuff. But that's not to say you can't achieve some degree of hypertrophy or get an amazing physique doing mostly bodyweight stuff. Male gymnasts are jacked and get there doing mostly bodyweight stuff.